I didn't really notice this until recently, but I don't have the option to enable extended attributes in ext4 on all 3.11 kernels (they're all I have left since last cleaning). Am I missing something?_________________Autobots... roll out!!

If you want to see whether ext4 xattr support is working, why are you editing the attributes on a file on a tmpfs?

Not sure. Got this from https://wiki.gentoo.org/wiki/Netflix‎... Though, I'm pretty sure xattr_test=$(mktemp) just writes output to /tmp/tempfile as opposed to testing /tmp. The directory I'm in when executing the script is $HOME which is ext4._________________Autobots... roll out!!

What output would that be? You never write any output to the temporary file it creates. Nothing in the test considers the current working directory at all, so the value of $HOME or the filesystem backing it are irrelevant here. You are testing for working xattr support in $TMPDIR. If you want this to work, you must enable TMPFS_XATTR in Kconfig.